OnePlus 3 vs. OnePlus 9

Phone Comparison, Reviews and Tests

In depth comparison and review of OnePlus 3 and OnePlus 9. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

OnePlus 3 vs. OnePlus 9 Comparison Chart
DESIGN AND DIMENSIONS OnePlus 3 OnePlus 9
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 152.7 mm 160 mm OnePlus 9 has greater height than OnePlus 3.
Width 74.7 mm 74.2 mm OnePlus 3 has greater width than OnePlus 9.
Depth 7.4 mm 8.7 mm OnePlus 3 is narrower than OnePlus 3.
Weight 158 g 192 g OnePlus 3 is lighter than OnePlus 3.
Body Colour - Astral black | Arctic sky
Body Material Anodised aluminium -
Waterproof (Water-resistant) - -
SAR Value 0.645 W/kg (body), 0.995 W/kg (head) -
Connector Type Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
USB Type-C - 24 pin USB-C
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY OnePlus 3 OnePlus 9
Display Type OLED display OLED display
Display Technology Optic AMOLED Fluid Amoled
Screen Size (Display Size) 5.5" 6.55" OnePlus 9 has larger screen size than OnePlus 3.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2400 x 1080 pixels OnePlus 9 has better screen resolution than OnePlus 3.
Display Format Full HD Full HD+
Pixel Density 401 ppi 402 ppi OnePlus 9 has better pixel density than OnePlus 3.
Aspect Ratio - 20:9
Max Brightness - 1100 cd/m²
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
HDR - Yes OnePlus 9 has HDR.
HDR Technology - HDR10+
Display Enhancement Technology - Vibrant Color Effect
Display Refresh Rate - 120 Hz
Display Features - Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass (scratch resistant glass)
PROCESSOR OnePlus 3 OnePlus 9
Processor Type (CPU) Qualcomm Snapdragon 820 Qualcomm Snapdragon 888
Processor Number MSM8996 -
Clock Speed 2.15 GHz -
Processor Core Qty Quad-core 8-core OnePlus 9 has higher processor core quantity than OnePlus 3.
64-bit Architecture Yes - OnePlus 3 has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 530 Qualcomm ADRENO 660
MEMORY OnePlus 3 OnePlus 9
RAM 6 GB LPDDR5 SDRAM - 8 GB OnePlus 9 has more RAM than OnePlus 3.
Internal Memory Size (Storage Capacity) 64 GB 128 GB OnePlus 9 has more internal memory than OnePlus 3.
Memory Interface - UFS 3.1
CAMERA OnePlus 3 OnePlus 9
MAIN CAMERA
Number of Main Cameras 1 3
Sensor Resolution 16 Megapixel 48 Megapixel OnePlus 9 has better camera resolution than OnePlus 3.
Sensor Size - 1/1.43"
Sensor Name Sony Exmor RS IMX298 sensor Sony Exmor RS IMX689 sensor
Lens Aperture F/2.0 F/1.8 OnePlus 9 has better lens aperture than OnePlus 3.
Lens Construction - 7-element
Pixel Size - 1.12 μm
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - OnePlus 3 has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Minimum Focal Length (Focal Distance) - 23 mm
Special Effects HDR HDR
HDR Mode Auto HDR mode -
Camera Modes Panorama Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape
Face Recognition (Face ID) Face detection - OnePlus 3 has face detection.
Light Source LED light Dual LED flash
Video Resolutions 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), geotagging Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW
SECOND CAMERA
Sensor Resolution (2nd Camera) - 50 Megapixel
Sensor Size (2nd Camera) - 1/1.56"
Sensor Name (2nd Camera) - Sony Exmor RS IMX766 sensor
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Lens Element Qty (2nd Camera) - 7-element
Field of View (2nd Camera) - 119 degree(s)
Minimum Focal Length (2nd Camera) - 14 mm
Camera Features (2nd Camera) - 2x2 On-Chip Lens (OCL), Freeform Lens
THIRD CAMERA
Sensor Resolution (3rd Camera) - 2 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Lens Element Qty (3rd Camera) - 3-element
Camera Functions (3rd Camera) - Monochrome
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 16 Megapixel OnePlus 9 has better front camera resolution than OnePlus 3.
Sensor Name (Front) Sony Exmor R IMX179 sensor Sony Exmor RX IMX471 sensor
Lens Aperture (Front) F/2.0 F/2.4 OnePlus 3 has better front lens aperture than OnePlus 3.
Pixel Size (Front) - 1 μm
Focus Adjustment Focus free Focus free
Special Effects (Front) - HDR, face retouch
Camera Modes (Front) - Time-lapse mode
Light Source (Front) - Display flash
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Front) - Electronic Image Stabiliser (EIS)
BATTERY AND CHARGING OnePlus 3 OnePlus 9
Battery Capacity (Battery Size) 3000 mAh 4500 mAh OnePlus 9 has larger battery capacity than OnePlus 3.
Fast Charging Technology - Qualcomm Quick Charge, Warp Charge 65T technology OnePlus 9 has fast charging technology.
Recharge Time (Charging Time) - 29 min
Wireless Charging - Yes OnePlus 9 can be charged wirelessly.
Wireless Charging Standards - Qi
Battery Technology Lithium Ion -
CELLULAR OnePlus 3 OnePlus 9
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G OnePlus 9 has more advanced generation mobile network.
Operating System OxygenOS (based on Android 6.0.1) OxygenOS (based on Android 11)
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS OnePlus 3 OnePlus 9
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE FDD-LTE, TDD-LTE, 5G NR FR1
2G Band - 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band - Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19
3G UMTS Frequency - 2100, 1900, 1700, 850, 900, 1700, 800
4G LTE Band Band 1, Band 2, Band 4, Band 5, Band 7, Band 12, Band 17, Band 30 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 700a, FDD 700b, FDD 2300 WCS FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3
5G NR Band - N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40
5G NR Frequency - FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 4.2 Bluetooth 5.2
Bluetooth Profiles A2DP -
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Modem - Snapdragon X55 5G
Messaging Services SMS, MMS -
MEDIA OnePlus 3 OnePlus 9
Supported Digital Audio Standards WAV, WMA, MP3, FLAC, eAAC+ WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4
Supported Digital Video Standards XviD, MPEG-4, DivX, H.265 MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4
Sound Enhancements Dirac sound technologies Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound
FEATURES OnePlus 3 OnePlus 9
Phone Functions Speakerphone, call timer, conference call, flight mode, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, proximity sensor, digital compass, gyro sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, flicker sensor, sensor core
Security Devices Fingerprint reader Fingerprint reader (under display), face recognition
Additional Phone Features DLNA Certified, sharing media via DLNA Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games
OTHERS OnePlus 3 OnePlus 9
Included Accessories Screen protection film, USB cable, power adapter, SIM card removal tool SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter
Compliant Standards - SGS
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